Safety razor



De. 20, 1932. MUQS 1,891,627

SAFETY RAZOR Filed May 8, 1931 u v l l E Patented Dec. 20, 1932 'UNITED iSTATES PATENT OFFICE JOSEPH MUROS, OF NEW YORK, N. Y., ASSIGNOR TO GILLETTE SAFETY RAZOR OOMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION F DELAWARE` SAFETY Razon Application inea may s, 1931. serial No. 535,899.

My invention has reference to safety razors comprising blade clamping members having means to enter apertures in blades to position the latter in shaving relation to ll guarding means. f

An object of my invention is to provide means to position a blade in shaving relation to guarding means in the event that the blade has an aperture that will not cooperate with the blade positioning means of the blade holder to retain the blade in shaving position.

In carrying out my invention I` provide blade clamping members having blade positioning means, a handle detachably connected with said members, and blade positioning means retained between a blade clamping member and the handle, said positioning means being cooperative with a blade to retain it in shaving position between the clamping members.

My invention also comprises novel details of improvement that will be more fully hereinafter set forth and then pointed out in the claims.

Reference is to be had to the accompanying drawing, wherein Fig. 1 is a side view of my improved safety razor;

Fig. 2 is a section on line 2, 2 in Fig. 1; Fig. 3 is a partly broken Fplan view of the razor taken on line 3, 3 in ig. 2;

Fig. 4 is a section on line 4, 4 in Fig. 2; Fig. 5 is a plan view of the blade posi- 85 tio'ning means or blade ada ter; v

Fig. 6 is a plan view of a lade; y Fig. 7 is a side view of a modiiication; Fig. 8 is a cross section of Fig. 7 taken vey close to the handle; 49 ign 9 is a plan view of the modified blade pos1t1oning means or blade adapter;

gig. 10 1s a section on line 10, 10 in Fig. 9 an Fig. 11 is a plan view of the blade of Fig f imilar numerals indicate corresponding parts in the several views.

The numerals 1 and 2 indicate blade clamping membershe member 1 being shown as a guard mem r having guard teeth on oppowith the members 1 and 2. The handle 4 is site sides and the member 2 is shown as a blade cap or backing. The members 1 and 2 are adapted to clamp a blade 3 between thema. At 4 is a handle detachably connected shown provided with a threaded recess 5 at one end adapted to mesh with a threaded stem 6 that projects from the cap 2 through an opening 7 in the guard member 1 into the recess 5, whereby the handle may be pressed or drawn toward the guard member. The members 1 and 2 are provided with blade positioning means between them. I have shown the guard member l provided with spaced. studs or projections 8, adapted to enter an aperture or apertures in a blade to position the latter on the guard member, and the cap or backing member 2 is shown provided with a projecting rib 9, (between the studs 8) adapted to pass through a blade aperture. The cap 2 is shown provided with recesses 10 to receive the studs 8 from the guard member, and the guard member is shown provided with a recess 11. to receive the projecting rib 9 from the cap, whereby the clamping members and the blade may be assembled as illustrated in Fig. 2- A blade having one or more apertures adapted to properly receive the projecting means 8 and 9 will be retained in shaving position ben tween the members l and 2 with the blade cuttlilng edges in shaving relation to the guard teet A blade having an aperture 3a that does not properly fit the blade positioning means 8 and 9 would not be retained by said means in proper shaving relation to the guard teeth. In order to retain the blade having such an aperture, as 3a,in shaving. relation to the guard member I provide a blade positioner or adapter 12 having means to engage the blade and retain `it in shaving relation to the guard. The adapter 12 is provided With one or morew projections at its ends to engage 95 the blade to position it on the guard member. Said adapter is also provided with a hole 13, shown centrally disposed, adapted to receive the stem 6 of the cap 2. The adapter comprises a suitable piece or sheet of 100 metal adapted to fit against the outer surface of the guard member 1, on the side opposite the blade receiving surface of said member. When the adapter 12 is placed against the guard member and the handle 4 is screwed on the stem 6, with the parts assembled as in Fig. 2, the adapter will be retained between the guard member and the handle by screwing the latter tightly against the adapter.

ln the form shown in Figs. 1 to 5 the adapter is provided with spaced'projections 14 at each end that project toward the cap 2 suliiciently far to cooperate with the blade 3 to retain it in shaving position between the members 1 and 2. The blade is shown provided with projections 3b at its ends, that are of less length transversely of the blade than the distance between the cutting edges of the blade, the blade having recesses 3 at its corners. When the parts are assembled the adapter projections 14 will be at the ends of the guard member and in the recesses 3 of the blade, the end projections 3b of the blade opposing said projections 14, whereby the blade will be retained on the guard member in shaving relation thereto.

Side portions of the adapter l2 are in position to engage the guard teeth la on the guard member 1 to locate theadapter in shaving relation to the guard member. I have shown the adapter provided with side projections 12a to engage the inner side of the guard teeth 1a to keep the adapter in position to locate the blade in shaving position on the guard member. l preferably provide spaces 12b along the side of the adapter, between the corresponding projections 12a, as clearances or passages for lather from between the guard teeth-during shavin ln the event that a blade cap or t(backing member is not retained in shaving position by a guard member of a blade holder,'1 prefer to make the projections 14 suiiiciently long to o pose the ends of the cap or backing mem er 2 and engage the cap to locate the latter in shaving position on the blade.

In the form shown in Figs. 7 to 10 the adapter 12 is provided with a single projection 14 at each end, in the line of the longitudinal centre of the adapter, to receive the ends of the guard member therebetween. The central portions 15 of the adapter 12 are shown recessed, preferably being curved on a suitable radius, to receive a corresponding projecting portion 16 extending longitudinally alon the under side of the guard member, where y when the parts are assembled v the projection will extend into the recess 15.

The central portion 17 of the adapter is iat to bear a ainst the ard member and the handle. e projections 3b of the blade are shown rovided with recesses 3 to receive the projections 14 from the adapter to retain the blade cutting edges in shaving relation to the guard teeth. The projections 14 will engage the cap for described.

When the razor is to be used with blades that are provided with apertures' intended to fit the projectons 8 to retain the blade in shaving position on the guard member the adapter need not be used, and the handle 4 may be screwed directly against the guard member to clamp the blade between said memberand the cap 2.l When, however, a blade havingan aperture, such as 3a, not fitted to the projections 8, is to be used in the razor the adapter will be placed against the under surface of the guard member, the blade will be placed on the guard member and the cap over the blade, and then the' handle will be screwed on the stem 6 to retain the adapter, which will position said blade between the clamping members 1 and 2 in shaving position. n

Changes may be made in the details set forth, within the scope of the appended claims, without departing from the spirit of of my invention.

Having now described my invention what I claim is:

the purposes before 1. A safety razor comprising blade clamping members, one of said members having a threaded stem and the other member having an opening to receive said stem, a handle having means to detachably connect it with said stem, one of said members having blade po sitioning means, and an adapter for blades having a portion to iit one of said members for positioning the adapter with respect thereto, said adapter having a hole to receive said stem with the handle bearing against the ada ter to retain it against said member, said a apter having separate blade positioning means.

l2. A safety razor as set forth in claim 1 in which the blade positioning means of the adapter includes projections at the ends of the adapter to engage a blade between said members to retain the blade in shaving position.

3. A safety razor comprisin blade clamping members having blade positioning means between them, a handle, one of said members having a stem, means to detachablyconnect the handle and the stem, an adapter tol fit against one of said members and having a hole to receive said stem, whereby the adapter may be clamped by the handle against said member, and a blade having an aperture to receive said positioning means, saidblade having projections at its ends and the adapter having rojections at its ends to engage the projections of the blade to retain the blade in shaving position.

4. A safety razor as set forth in claim 3 in which the blade has recesses at its ends to receive the ,projections of the adapter.

5. A safety razor as set forth in claim 3 in which the blade projections are of less length than the distance between cutting ed es of the blade and the projections of the a apter are located at the ends of the blade projections. l

i 6. An adapter for a safety razor 'blade holder having side portions to engage guard teeth of the holder to position the adapter to the holder, said adapter having means to locate a blade on the holder. 7. An adapter for a safety razor blade holder as set forth in claim 6 provided with recesses at its side portions to permit the passage of lather from the guard teeth. Y 8. A safety razor comprising a cap, a guard with curved teeth along its edges, an interposed blade, and an adapter/disposed outside the guard and equipped with portions for engaging and locating the adapter with respect` to the inner curved face of the guard teeth 20 and separate projections for positioning the blade between the cap andguard.

9. An adapter for a safety razor which in'- cludes a guard member with curved ard teeth along each ed thereof, thea apter comprising a plate tting the outer face of the guard having lateral extensions for contacting-with the guard teeth, and upright projections for positioning a blade upon the iimer face of the guard.

JosEPH Monos. 

